A graduated cylinder has 22 mL of water placed in it. An irregularly shaped rock is then placed in the graduated cylinder and the volume of the rock and water in the graduated cylinder now reads 30 mL . The mass of the rock is 24 g. Part A: Find the volume of the rock. (round to the nearest whole number)

Part B: What is the density of the rock? Its mass was 24 g. (round to the nearest whole number)